massoutage

County annual report · FIPS 16085

2025 Valley County, ID Power Outage Report

In 2025, customers in Valley County, ID went without power for an average of 34.3 hours, a total of 205K customer-hours (Idaho average 5.6 hours). That ranks 6th worst of 43 Idaho counties and 150th of 3,000 nationally.

Summary data CSVJSON
Avg hrs / customer
34.3
5,992 customers
Customer-hours out
205K
Peak customers out
8,046
Outages ≥1,000 out
5
0 of 10,000+ · 135 total
Longest outage
5d 12h
began December 17, 2025
Rank in state
6th/43
150th of 3,000 US

Compared with ID, the US and 2024

Valley County, ID average hours without power per customer compared with state and national averages, 2025Valley County 34.3 hours, Idaho average 5.6 hours, US average 5.9 hours, Valley County, 2024 36.5 hoursValley CountyValley County34.3hIdaho averageIdaho average5.6hUS averageUS average5.9hValley County, 2024Valley County, 202436.5h
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Average hours without power per customer in 2025; last bar is this county in 2024.

Month by month

CSVJSON
Valley County, ID customer-hours without power by month, 2025Jan 1,672, Feb 3,950, Mar 3,736, Apr 3,936, May 4,134, Jun 3,240, Jul 16K, Aug 11K, Sep 9,439, Oct 6,626, Nov 1,196, Dec 141K050k100k150k1,672Jan3,950Feb3,736Mar3,936Apr4,134May3,240Jun16KJul11KAug9,439Sep6,626Oct1,196Nov141KDec
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Customer-hours; December was the worst month.

Valley County year over year

CSVJSON
Valley County, ID: average hours without power per customer by year2015: 1.4h; 2016: 5.6h; 2017: 16.6h; 2018: 5.9h, coverage 91%; 2019: 11.5h, coverage 92%; 2020: 13.4h, coverage 95%; 2021: 10.7h, coverage 90%; 2022: 6.3h, coverage 91%; 2023: 12.1h; 2024: 36.5h; 2025: 34.3h0102030400%50%100%1.4h20155.6h201616.6h20175.9h201811.5h201913.4h202010.7h20216.3h202212.1h202336.5h202434.3h2025
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Average hours without power per customer. Line: EAGLE-I coverage, share of customers tracked (right axis).

Coverage line is EAGLE-I's share of Idaho customers tracked each year.

Biggest outages in Valley County, 2025

The 10 outage episodes with the most customers out at once. Times are UTC.

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1December 17, 2025 13:15December 23, 2025 01:455d 12h8,046134K
2December 26, 2025 14:30December 27, 2025 12:3022h2,1966,215
3July 10, 2025 01:00July 10, 2025 15:0014h1,97412K
4October 25, 2025 05:45October 25, 2025 08:002h 15m1,8414,142
5July 31, 2025 23:15August 1, 2025 07:458h 30m1,1436,009
6April 18, 2025 01:00April 18, 2025 03:302h 30m8871,544
7March 27, 2025 23:45March 28, 2025 03:153h 30m885834
8August 4, 2025 22:00August 4, 2025 22:4545m857643
9February 13, 2025 21:00February 13, 2025 21:1515m849212
10September 16, 2025 16:15September 16, 2025 23:307h 15m7914,602

Outage episodes by size in 2025: 45 reached 100+ customers, 5 reached 1,000+ customers, 0 reached 10,000+ customers.

Utility reliability filed with the EIA

SAIDI (average outage time per customer) and SAIFI (average interruptions per customer) that utilities serving Valley County reported on EIA Form 861 for 2025, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Idaho Power Co20246.0 hrs1.975.0 hrs1.84

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of Idaho's customers in 2025; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 5,992 customers (ORNL modeled county customer count), including major storm days. It is comparable across counties but is not the SAIDI a utility files.
  • An outage event is a continuous stretch with customers out; counts at 100, 1,000 and 10,000+ use its peak.
  • Years loaded: 2015–2025. Valley County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Valley County, ID annual power outage report, 2025, data as of Oct 3, 2026 02:41 UTC, sources: DOE EAGLE-I (https://eagle-i.doe.gov/); EAGLE-I modeled customer counts (MCC) (https://figshare.com/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2025/idaho/valley-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON